Acrocorinth Fort

The Acrocorinth Fort was a fortress built atop the Acrocorinth acropolis of Corinth. It was built to defend the highest point of the city during the Peloponnesian War, and it was used by the Spartans to defend the city; it was later given heavier fortifications by the Byzantines and then occupied by the Franks, Venetians, and Ottomans. It is now a tourist destination as one of the best medieval castle ruins in Greece.